Home / 10,279.35-15,409.76-3,700.89

Finding the Fourth Proportional to 10,279.35, 15,409.76 and 3,700.89

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Solution

The fourth proportional to 10,279.35, 15,409.76 and 3,700.89 is: 5,548.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,279.35 : 15,409.76 = 3,700.89 : x
  2. Step 2: Convert to fraction form
    10,279.35/15,409.76 = 3,700.89/x
  3. Step 3: Cross multiply
    10,279.35x = 15,409.76 × 3,700.89
  4. Step 4: Simplify right side
    10,279.35x = 57,029,808.18
  5. Step 5: Solve for x
    x = 57,029,808.18/10,279.35
  6. Step 6: Final answer
    x = 5,548.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.